Home / 51,879.21-71,595.97-31,729.76

Finding the Fourth Proportional to 51,879.21, 71,595.97 and 31,729.76

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Solution

The fourth proportional to 51,879.21, 71,595.97 and 31,729.76 is: 43,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,879.21 : 71,595.97 = 31,729.76 : x
  2. Step 2: Convert to fraction form
    51,879.21/71,595.97 = 31,729.76/x
  3. Step 3: Cross multiply
    51,879.21x = 71,595.97 × 31,729.76
  4. Step 4: Simplify right side
    51,879.21x = 2,271,722,910.49
  5. Step 5: Solve for x
    x = 2,271,722,910.49/51,879.21
  6. Step 6: Final answer
    x = 43,788.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.